COILOSTELE. GLESSULA. 377 



Original description : " C. testa imperforata, elongato-cylin- 

 drica, laevi, hyalina, nitida ; spira elongata, gradatim scalariter 

 attenuata, apiee obtuso, sutura profunda: anfractibus 6, con- 

 vexiusculis, superne obtuse angulatis, penultimo cylindraceo ; 

 apertura subobliqua, semiovata, subpyriformi ; peristomate tenui, 

 recto, marginibus remotis, margine columellari crassiusculo, plica 

 spiral! obliqaa elongata superne intrante munito. 



" Long. 3, diam. vix 1 mm. Apert. J, lata j mm." (Benson.) 



Hob. India : Humeerpore, Bundelkhund, banks of Jumna and 

 Betwa Bivers (Benson} Kashmir (Theobald) ; Sind (Blanford). 



The British Museum contains three specimens, the only ones 

 I have seen, labelled "Northern India"; they measure : length 

 4 mm., diam. 1*5 mm. 



Genus GLESSULA, von Martens. 



Electra, Albers, Die HeliceeD, 1850, p. 194 (as section of Achatina), 

 only species, A. ceylanica (non Electra, Lam. 1816, uon Electra, 

 Steph. 1829, nou Electra, Loew, 1845); Adams, Gen. Eec. Moll. 

 ii, 1855, p. 105 (as subgenus of Oleacina) ; Pfeiffer, Malak. Blatt. 

 ii, 1856, p. 168 (as section of Achatina). 



Glessula, von Martens, Die Heliceen, ed. 2, 1860, p. 254 ( as sub- 

 genus of Cionella^ type A. gemma, Benson; Pfeiffer & Clessin, 

 Alon. Helic. Viv. 188J, p. 329; Nevill, Hand List, i, 1878, p. 166 

 (as subgenus of Stenogyra) ; Beddome, Proc. Malac. Soc. London, 

 vii, 1906, p. 160 ; Pils'bry, Man. Conch, ser. 2, xx, 1908, p. 50, 

 pi. 15 ; figs. 2, 3 (anatomy). 



TYPE, Achatina ceylanica, Pfeiffer. 



Range. India, Ceylon and Burma, South-Western China, Farther 

 India ; Sumatra, Java, and Borneo ; East and West Africa. 



'* The shell is imperforate, ovate-conic or turrite, brown or 

 corneous-brown, glossy, and usually without strong sculpture ; 

 apex obtuse. Aperture irregularly oval ; outer lip unexpanded, 

 acute or blunt ; columella short, more or less deeply concave, 

 abruptly truncate at the base. 



" Sole without distinct median area ; no pedal margin ; an outer 

 mantle lobe on the left side. Kidney very long, band-like. 

 Genitalia peculiar ; there is a feather-like gland where the vas 

 deferens enters the penis. The latter contains a short conic, 

 perforated papilla, and two longitudinal folds. The prostrate 

 gland of the hermaphrodite duct consists of entirely separated 

 narrow follicles, as in Acliatina. The spermatheca has a short 

 duct. Uterus containing several large shells with fully 2 whorls. 



" The jaw is very finely striate, almost smooth. Radula has 

 about 110 teeth in a transverse row. The central tooth is very 

 small, tricuspid ; laterals with three cusps ; outer marginal teeth 

 very finely 3- or 4-cusped (G. orophila, from Madras, according 

 to Semper). 



" Glessala was associated with " Cionella " (that is the EEEUS- 

 SACIDJE as herein understood) by Professor von Martens in 1860. 



